Step 4: Install the sub-harness that connects the coil to the distributor
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Applicable to these part numbers:
Make the connection at the coil
- Connect one end of the black wire to the negative terminal on the coil. If you have a Magneti Marelli coil, the black wire will have a 5 mm ring terminal at the coil end. If you have a Bosch coil, the black wire will have a female spade terminal at the coil end.

Bosch coils accept 6.3 mm female spade terminals. Photo courtesy of Gregory Bender.

Magneti Marelli coils accept 5 mm ring terminals. Photo courtesy of Gregory Bender.
Make the connection at the distributor
- Connect the other end of the black wire to the post on the side of the distributor. The post is shared with the wire from the condenser.

Photo courtesy of Gregory Bender.